I was wondering if there was a way to use Normal Maps for displacement in TG3. I guess it is possible to use it as a traditional bump map, but is there a node or a function that allows to use the real data from a normal map ?
Terragen can't use Normal Maps directly, but you *may* depending on the format it's stored in (e.g. multi-channel RGB), you could potentially make use of it by splitting out the individual channels to grayscale and use to drive displacement. It may be easier and more predictable to convert to a simpler bump/displacement map beforehand, though of course you potentially lose some quality/accuracy that way.
It'd be great if use of normal maps could be implemented directly.